If x=30 deg vetify a) sin3x-3sinx-4sin*3x
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given
x=30°
therefore we can write sin3x -3sinx- 4sin*3x as
sin3(30°) - 3sin30°-4sin*3 30°
= sin90°-3sin30°-4sin*3 30°
= 1 - 3/2 - 1/2
= -1
HOPE IT HELPS YOU DEAR FRIEND✌️✌️✌️✌️....
x=30°
therefore we can write sin3x -3sinx- 4sin*3x as
sin3(30°) - 3sin30°-4sin*3 30°
= sin90°-3sin30°-4sin*3 30°
= 1 - 3/2 - 1/2
= -1
HOPE IT HELPS YOU DEAR FRIEND✌️✌️✌️✌️....
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